Tractor design



FIG. 1 is a front perspective view of our new tractor design; the broken line showing is for illustative purposes only and forms no part of the claimed design.

FIG. 2 is a plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a rear elevational view thereof; and,

FIG. 7 is a bottom plan view thereof. 

The ornamental design for a tractor design, as shown and described. 